Question: What is the birth date of the child of Abigail Adams and Charles Adams?
Paraphrase: What is the birth date of the child of Abigail Adams and Charles Adams?
SPARQL (Wikidata): SELECT ?value1 ?value2 WHERE { wd:Q206191 p:P40 ?s . ?s ps:P40 wd:Q5074968 . ?s pq:P569 ?value1 . ?s pq:P22 ?value2 }